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Simplifying 2(4 + -2x + x2) + -1x(x + 2) = 0 (4 * 2 + -2x * 2 + x2 * 2) + -1x(x + 2) = 0 (8 + -4x + 2x2) + -1x(x + 2) = 0 Reorder the terms: 8 + -4x + 2x2 + -1x(2 + x) = 0 8 + -4x + 2x2 + (2 * -1x + x * -1x) = 0 8 + -4x + 2x2 + (-2x + -1x2) = 0 Reorder the terms: 8 + -4x + -2x + 2x2 + -1x2 = 0 Combine like terms: -4x + -2x = -6x 8 + -6x + 2x2 + -1x2 = 0 Combine like terms: 2x2 + -1x2 = 1x2 8 + -6x + 1x2 = 0 Solving 8 + -6x + 1x2 = 0 Solving for variable 'x'. Factor a trinomial. (2 + -1x)(4 + -1x) = 0Subproblem 1
Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Solution
x = {2, 4}
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